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Merge branch 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

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* 'x86-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, iommu: Update header comments with appropriate naming
  ia64, iommu: Add a dummy iommu_table.h file in IA64.
  x86, iommu: Fix IOMMU_INIT alignment rules
  x86, doc: Adding comments about .iommu_table and its neighbors.
  x86, iommu: Utilize the IOMMU_INIT macros functionality.
  x86, VT-d: Make Intel VT-d IOMMU use IOMMU_INIT_* macros.
  x86, GART/AMD-VI: Make AMD GART and IOMMU use IOMMU_INIT_* macros.
  x86, calgary: Make Calgary IOMMU use IOMMU_INIT_* macros.
  x86, xen-swiotlb: Make Xen-SWIOTLB use IOMMU_INIT_* macros.
  x86, swiotlb: Make SWIOTLB use IOMMU_INIT_* macros.
  x86, swiotlb: Simplify SWIOTLB pci_swiotlb_detect routine.
  x86, iommu: Add proper dependency sort routine (and sanity check).
  x86, iommu: Make all IOMMU's detection routines return a value.
  x86, iommu: Add IOMMU_INIT macros, .iommu_table section, and iommu_table_entry structure
This commit is contained in:
Linus Torvalds
2010-10-21 14:23:48 -07:00
parent 4a60cfa945 6e96366933
commit 157b6ceb13
18 changed files with 345 additions and 58 deletions
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15
arch/x86/kernel/amd_iommu_init.c
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@ -31,7 +31,7 @@
#include <asm/iommu.h>
#include <asm/gart.h>
#include <asm/x86_init.h>
#include <asm/iommu_table.h>
/*
* definitions for the ACPI scanning code
*/
@ -1499,13 +1499,13 @@ static int __init early_amd_iommu_detect(struct acpi_table_header *table)
return 0;
}
void __init amd_iommu_detect(void)
int __init amd_iommu_detect(void)
{
if (no_iommu || (iommu_detected && !gart_iommu_aperture))
return;
return -ENODEV;
if (amd_iommu_disabled)
return;
return -ENODEV;
if (acpi_table_parse("IVRS", early_amd_iommu_detect) == 0) {
iommu_detected = 1;
@ -1514,7 +1514,9 @@ void __init amd_iommu_detect(void)
/* Make sure ACS will be enabled */
pci_request_acs();
return 1;
}
return -ENODEV;
}
/****************************************************************************
@ -1545,3 +1547,8 @@ static int __init parse_amd_iommu_options(char *str)
__setup("amd_iommu_dump", parse_amd_iommu_dump);
__setup("amd_iommu=", parse_amd_iommu_options);
IOMMU_INIT_FINISH(amd_iommu_detect,
gart_iommu_hole_init,
0,
0);